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Data Mining Analysis for KIP Scholarship Eligibility Using Integrated DBSCAN and TOPSIS Imam Akbar; Chyquitha Danuputri; Rahma; Ita Sarmita Samad
Journal of Information System and Informatics Vol 8 No 2 (2026): April
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63158/journalisi.v8i2.1534

Abstract

This study aims to objectively analyze the feasibility of prospective recipients of the Smart Indonesia Card Scholarship (KIP-K) by integrating the Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. The research dataset consists of 287 data on prospective scholarship recipients with 11 main attributes that reflect the socio-economic and academic conditions of students. The research process includes data collection, pre-processing, transformation of categorical attributes into numerical values using a linear weighting scheme, cluster analysis using DBSCAN, and candidate ranking using TOPSIS. DBSCAN is used to identify cluster patterns and detect anomalies in the data of potential recipients, while TOPSIS is used to rank candidates based on proximity to the ideal solution. The results of the grouping produced 10 clusters and one noise cluster that showed a variety of socio-economic characteristics of prospective scholarship recipients. The results of the ranking show that some of the candidates with the highest TOPSIS scores come from clusters with higher levels of economic vulnerability. In addition, some of the high-scoring candidates also came from the noise cluster, indicating that even though they did not belong to a particular group, they still met the eligibility criteria based on a multi-criteria evaluation. These findings show that the combination of DBSCAN and TOPSIS has the potential to support the process of analyzing the eligibility of scholarship recipients in a more systematic and data-driven manner.
Enhancing YOLOv12-Based Rice Leaf Disease Detection through Evaluation of Three Data-Split Scenarios Ida Mulyadi; Fahrim Irhamna; Chyquitha Danuputri; Ridwang; Ridha Awalia
Journal of Information System and Informatics Vol 8 No 2 (2026): April
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63158/journalisi.v8i2.1580

Abstract

One of the most significant staple crops in the world is rice, and one of the main causes of the drop in agricultural yields is illnesses that affect rice leaves. To avoid large agricultural losses, early diagnosis of these illnesses is essential. The goal of this project is to use YOLOv12, the most recent deep learning-based object detection architecture, to create a rice leaf disease detection system. The model was trained using a dataset of 4,744 photos of rice leaves that included three disease classes: Leaf Blast, Brown Spot, and Bacterial Leaf Blight. Methods to boost variability and enhance detection performance, image preprocessing with data augmentation was used. Standard object detection criteria, such as mean Average Precision (mAP), precision, and recall, were used to assess the model. The YOLOv12 model was highly effective in detecting rice leaf illnesses. According to the experimental data, it achieved a mAP of 97%, a precision of 96%, and a recall of 96.5%. The use of YOLOv12's greater efficiency and quality in detecting small objects—which is essential for identifying illness symptoms on leaves—is what makes this study successful. These results lay the groundwork for upcoming precision agricultural real-time monitoring applications.
Analisis Sentimen dan Clustering Komentar Twitter Menggunakan Metode Lexicon-Based dan Algoritma K-Means Anugrah Resky Samudra; Chyquitha Danuputri; Titin Wahyuni
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/8njz7s15

Abstract

ABSTRAK: Media sosial Twitter telah menjadi salah satu platform utama bagi masyarakat dalam menyampaikan opini dan persepsi terhadap berbagai isu publik, termasuk isu ekonomi nasional. Besarnya volume data teks yang dihasilkan menuntut adanya metode analisis yang mampu mengekstraksi informasi secara efektif. Penelitian ini bertujuan untuk memetakan opini publik di Twitter berdasarkan polaritas sentimen serta kemiripan topik pembahasan. Metode yang digunakan meliputi analisis sentimen berbasis leksikon untuk menentukan kecenderungan sentimen positif, negatif, dan netral, serta teknik clustering teks untuk mengelompokkan komentar berdasarkan kesamaan karakteristik kontennya. Data penelitian diperoleh dari hasil pengumpulan komentar Twitter yang relevan dengan isu ekonomi nasional, kemudian melalui tahapan preprocessing teks, pembobotan kata menggunakan TF-IDF, dan proses pengelompokan data. Hasil penelitian menunjukkan bahwa integrasi analisis sentimen dan clustering mampu memberikan gambaran yang lebih komprehensif mengenai pola opini publik, baik dari sisi kecenderungan sentimen maupun topik diskusi yang dominan. Temuan ini diharapkan dapat menjadi referensi dalam pemanfaatan text mining untuk analisis opini publik berbasis media sosial. KATA KUNCIAnalisis Sentimen, Text Mining, Media Sosial, Clustering Teks, Twitter. ABSTRACT: Twitter has become one of the main social media platforms for the public to express opinions and perceptions on various public issues, including national economic issues. The large volume of textual data generated requires analytical methods capable of extracting information effectively. This study aims to map public opinion on Twitter based on sentiment polarity and topic similarity. The methods employed include lexicon-based sentiment analysis to identify positive, negative, and neutral sentiments, as well as text clustering techniques to group comments according to content similarity. The research data were obtained from the collection of Twitter comments related to national economic issues, followed by text preprocessing, term weighting using TF-IDF, and clustering processes. The results indicate that the integration of sentiment analysis and text clustering provides a more comprehensive overview of public opinion patterns, both in terms of sentiment tendencies and dominant discussion topics. These findings are expected to serve as a reference for the application of text mining in social media-based public opinion analysis. Keywords:Sentiment Analysis, Text Mining, Social Media, Text Clustering, Twitter.